Steel Design


Spring 2018

UltraBond Floor System speeds up Apartment Building Construction

A composite floor system shortened construction time by three months and cut material costs, for an 11-storey, 166-condo unit apartment building in Longueuil Quebec. The system, called UltraBond, comes in cold-form sheets 609.6mm (24 inches) wide, 203mm (8”) high and precut in lengths up to 10.06m (33 ft.), according to Simon Pawsey, technical sales representative with the Steelform Group of Companies.

Once assembled into floor decking and with rebar placed in the deep V-grooves, concrete is poured on the Ultra-Bond, creating a lightweight composite floor 292mm (11.5”) thick. Once finished, it has a two-hour fire rating. Pawsey checks off some of the advantages of this construction technique:

“UltraBond significantly reduced weight on the structure
compared to a conventional slab. It reduced shoring to one
row. Cost savings were a big factor, with one-third of the rebar
and 50 percent less concrete than a nine-inch slab. It saved the
general contractor about three months of construction time.”

The UltraBond used in the structure, including the balconies,
was 1.22mm (.048”) Z275 (G90) galvanized steel. The contractor
used 13,066m2 (140,000 sq. ft.) of UltraBond deck, weighing
about 226,796 Kg (500,000 pounds). Because of the lighter
weight, less shoring is required.

Close up of Balconies under construction
Apartment Building Under Construction

Axcès Saint-Charles in Longueuil, Québec, built with the UltraBond composite floor system and light steel framing. Rebar creates reinforced beams in the UltraBond composite floors, using 22mm (.048”) Z275 (G90) galvanized steel.

Contractors and steel beams of building under construction

UltraBond steel deck, rebar, mesh and concrete form a composite floor that is lighter than conventional concrete floor construction.

All images courtesy: Steelform Group

Axces STE Charles

G60 galvanized 1.22mm to 2.74mm (.048” to .108” )

Actual dimensions of the LSF supplied 152.4mm (6") studs

UltraBond – Z275 (G90) galvanized 1.22mm (.048”)


Habitations Trigone 450-446-8221


Steelform Group of Companies 514-210-0903


Atelier Urban Face 514-931-9168


CPF Groupe Conseils 514-667-5450


Produits de Bâtiment Fusion 450-728-4500


Les Installations Miral 450-492-5952


Habitations Trigone 450-446-8221


Simon Pawsey 514-210-0903

Explore this issue:

Steel and the sound of music

The Taylor Performing Arts Centre is music to students’ ears at Mount Royal University in Calgary. Designed by Pfeiffer Architecture, construction on the new addition to the school was begun in 2011 and finished in the Fall of 2015. The Centre’s crowning glory is the 800-seat Bella Concert Hall, which features a stunning Alberta rose […]


Pre-Painted Steel Cladding Integral to the North

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“It’s an aquatic centre first with community centre elements and a fitness facility. It’s Phase 1 of a long-term plan to increase recreational facilities in the community,” he explains. “Since it opened, the response has been overwhelmingly positive. The Centre gets a lot of use.” Stantec’s client for the job, the City of Iqaluit, had […]


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Pre-painted Galvanized Steel Cladding contributes to re-cladding project

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The waste transfer station was built in the 1970s by Inducon Consultants of Canada Limited. The original brick building was constructed without a rain screen cavity. As a result, moisture entering the masonry wall due to rain and/or the migration of moisture in the form of vapour from within, was unable to drain away effectively. […]


Real Steel Cost Advantages – Consider. Choose. Challenge.

Start at the foundation where the loads imposed by a steel frame are up to 50% less than those of a concrete alternative. There is evidence in the field and through third-party case studies and comparative cost studies that steel building systems offer significant cost benefits over competitive building materials when the total cost of construction is considered.

There is evidence in the field and through third-party case studies and comparative cost studies that steel building systems offer significant cost benefits over competitive building materials when the total cost of construction is considered. Building owners, developers, contractors and design professionals are concerned with overall system construction costs from the design phase through the […]